Circles in Nature

In this challenge, show us circles formed by nature. This might be a flower, a mushroom, a leaf, or perhaps something formed by wind or water. Macro and close-up shots welcome. Subjects should be taken outside in their natural environment, not inside under studio lights. No balls or spheres, or spirals this time; they will have their own challenges later. No shots of the moon, (which is a sphere.) SIZE: 1,600px MAXIMUM ON LONGER SIDE.

Show full rules

Announced:

Saturday, 4th May, 2013 (GMT)

Submissions:

Saturday, 11th May, 2013 –
Friday, 17th May, 2013
(GMT)

Voting:

Saturday, 18th May, 2013 –
Friday, 24th May, 2013
(GMT)

Processing rules:

SIZE: Longer side of entry, MAXIMUM 1600px.

Digital photos only, with full EXIF data.

Colour only.

NO glaringly obvious HDR. If it hurts my eyes, it's out!

TITLE: Give your entry a title, not just an photo number.

NO watermarks or forms of identification, or personal website references.

Capture date rules:

No restrictions.

Additional rules:

NO photos from previous DPR challenges can be entered in this challenge.

Two (2) entries per person allowed, but each entry should be of a different circular subject.

Encouraging comments about entries are welcome.

PLEASE, PLEASE, PLEASE! If you enter the challenge, vote on other entries! This will hopefully counteract the sandbaggers' votes which spoil the genuine results for everyone's entries.

ENTRANTS WHO HAVE ENTERED NUMEROUS CHALLENGES, AND HAVE NEVER VOTED, OR HAVE A VERY LOW VOTING SCORE RELATIVE TO THEIR ENTRIES, EXPECTING OTHERS TO DO THEIR WORK FOR THEM MAY BE DQ'D. I don't like Free-loaders or Free Riders in my challenges.

Sandbagging, and vote solicitation will cause DQ'ing of entries, don't even contemplate it!

Entrants or voters caught cheating will be unwelcome in my future challenges.

Your complaint (along with the complaints of others regarding this entry) will be
reviewed by the challenge owner. Depending upon the nature and applicability of the
complaint, the entry may be disqualified. In extreme circumstances the user who submitted
the entry may receive a ban from the challenge or series in question.